timer program

Your 'timer program' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

** Your General Comment **

** Describe what you see on your first 10 clicks **

I see that I am operating a stopwatch timer that saves incremental and cululmative times.

** Your TIMER data from 20 fast clicks **

1 4.5 4.5

2 4.671875 .171875

3 4.859375 .1875

4 5.015625 .15625

5 5.203125 .1875

6 5.390625 .1875

7 5.578125 .1875

8 5.765625 .1875

9 5.9375 .171875

10 6.140625 .203125

11 6.3125 .171875

12 6.5 .1875

13 6.671875 .171875

14 6.875 .203125

15 7.09375 .21875

16 7.28125 .1875

17 7.46875 .1875

18 7.65625 .1875

19 7.84375 .1875

20 8.046875 .203125

21 8.203125 .15625

** Your average time interval for 20 time intervals **

0.18515625

i got this number by pasting the info into Excel using the text import wizard, deliminating the text by spaces. Then I used the sum function for the interval column and divided by 20.

** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **

0.171875,4

0.1875,10

0.15625,2

0.203125,3

0.21875,1

** Your general comment to this point **

** Why did you observe only certain time intervals? **

This must mean that the timer has certain intervals that it it times to.

** What did you see when you looked at the differences between time successive time intervals? **

the diferences are a factor of 0.015625. This must be the intervals of the timer

** Your time intervals for 7 complete breaths: **

6.265625

6.625

6.671875

6.765625

7.375

8.171875

7.53125

7.546875

6.265625

8.125

** Your general comment to this point: **

** Why did you rarely, if ever, observe that same time interval twice? **

with the increased time between clicks, the timer does not need to be as acurate.

** Do you think this program is accurate to .1 or .01 ... **

My answwer is (a)

because the timers intervals are 0.015625 of a second. This means that the timer is not acurate to two decial place because it cannot give me a time of 0.01.

** Copy of a few lines of your spreadsheet from the TIMER program. **

event number clock time time interval

1 813.1563 813.1563

2 819.4219 6.265625

3 826.0469 6.625

4 832.7188 6.671875

5 839.4844 6.765625

6 846.8594 7.375

7 855.0313 8.171875

8 862.5625 7.53125

9 870.1094 7.546875

10 876.375 6.265625

11 884.5 8.125

** **

30 min

** **

Good work.

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Let me know if you have questions. &#